I have found
ebay an invaluable asset !
And while it has its share of 'clowns' (sellers dealing in things they now next to nothing about !)
And 'comedians' (sellers listing $10 coins for $199 !
It weren't so long ago that I remember a Vcoins seller hawking LRB's with the notorious "sand patina !"
Just that all his listings had the same fake sand patina .
After buying spray painted bronzes via Switzerland I have grown skeptical of more than a few "respectable" sellers
But some of my 'favorite' pieces came by way of
ebay My Caligula 'mule'
A nifty sestertius of Elagabalus
Well over 100 tetrarchy folles
Mostly London and Trier !
Even a Judaea Capta sestertius of Vespasian
But yes one need be careful
But even the so-called reputable sources are showing ample evidence of 'corruption'
I'm afraid it's what power & money does